<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        div{
            width: 300px;
            height: 300px;
            background-color: red;
        }
        /* ok */
    </style>
</head>
<body>
    <div id="dv"></div>
    <script>
        dv.addEventListener('touchstart', function(e){
            console.log('altKey=' + e.altKey);
            console.log('ctrlKey=' + e.ctrlKey);
        })
    </script>
</body>
</html>